Who Stands Last Stan / chess

This chessboard is made of magnetic metal, while the bottoms of these chessmen are magnets. On battle fields, soldiers who stand last are conquerors and those defeated would be carried away. Similarly, these chessmen, due to their circular arc forms, will stand up straight on the chessboard but lie down when taken away. During the play, one party are just like soldiers demonstrating they will stand forever, meanwhile their opponents swear to bring them down.